Failure of leucovorin "rescue" in methotrexate treatment of psoriasis.
D006801:Humans; D002955:Leucovorin / Q000494:pharmacology*; D008727:Methotrexate / Q000627:therapeutic use*; D011565:Psoriasis / Q000188:drug therapy*
D002955:Leucovorin; D008727:Methotrexate